434042503 has 4 divisors (see below), whose sum is σ = 435772008. Its totient is φ = 432313000.

The previous prime is 434042491. The next prime is 434042533. The reversal of 434042503 is 305240434.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434042503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434042533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864376 + ... + 864877.

It is an arithmetic number, because the mean of its divisors is an integer number (108943002).

Almost surely, 2^434042503 is an apocalyptic number.

434042503 is a deficient number, since it is larger than the sum of its proper divisors (1729505).

434042503 is a wasteful number, since it uses less digits than its factorization.

434042503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729504.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 434042503 is about 20833.6867356692. The cubic root of 434042503 is about 757.1421426513.

Adding to 434042503 its reverse (305240434), we get a palindrome (739282937).

The spelling of 434042503 in words is "four hundred thirty-four million, forty-two thousand, five hundred three".